Gr 649 drivers/media/usb/gspca/spca561.c __u8 R, Gr, Gb, B; Gr 664 drivers/media/usb/gspca/spca561.c Gr = gspca_dev->usb_buf[0]; Gr 671 drivers/media/usb/gspca/spca561.c y = (77 * R + 75 * (Gr + Gb) + 29 * B) >> 8;